Pete Rodger, 40, from Perthshire, and Malcolm Campbell, 25, from St Andrews, Fife, were among the men missing following Friday's initial blast at the Pike River mine in Atarau on the country's South Island.

In a message from the Queen, sent to Mr Key, she said: ''I am deeply saddened by today's news that there is now no hope for the men trapped in the Pike River mine.

''My heart goes out to the families and friends of these 29 brave miners and to all who have been touched by this national disaster.

''I send my thanks and deep appreciation to everyone who has worked so hard to attempt a rescue and also to those who will have a part to play in the task of healing the pain that is being felt throughout New Zealand and around the world.

''At this sad and difficult time my thoughts and prayers are with you all.''